> The question is whether the power and influence of the U.S. will grow similarly over the next 150 years as it has over the last 150.
Over the next 150 years I have no idea. But over the next 30-50 then almost certainly. No other country is even close and most seem quite comfortable with the global state of affairs all things considered. USA hegemony has created a stable world where the vast majority of people are far better off than their ancestors. It isn't perfect of course but there's no reason to think anyone else would do better. Especially when compared to the previous tenant, Europe.
Over the next 150 years I have no idea. But over the next 30-50 then almost certainly. No other country is even close and most seem quite comfortable with the global state of affairs all things considered. USA hegemony has created a stable world where the vast majority of people are far better off than their ancestors. It isn't perfect of course but there's no reason to think anyone else would do better. Especially when compared to the previous tenant, Europe.